AMACE - BU

Voltage of A-C Current can be stepped up or down

Which of the following statements/phrases best explains why a-c current is extensively used in residential, commercial, and industrial applications?

Air-Handling Unit

A packaged assembly of air-conditioning components consisting of coils, filters, fan, humidifier, etc., which provides for the treatment of air before it is distributed to an air-conditioned space. Identify item below

Water Supply and Distribution System

In a building, it consists of water service pipe, building supply pipes and the essential branch pipes, valves and all other appurtenances for the supply of water.

Roughing-In

In plumbing, it is defined as the installation of parts of the plumbing system which can be completed prior to installation of fixtures or finishing, it involves the use of drainage, water supply and vent pipes and other necessary fittings and pipe supports.

compressor, condenser, expansion valve, then evaporator

Which of the following arrangement of components will produce cooling effect in a refrigerating cycle?

Demand Factor

It is the ratio of the maximum demand of a system or part of a system to the total connected load of a systely or part of a system under consideration; value is expressed in percentage, e.g. 80 percent for residential load.

Siphonage

A suction created by the flow of liquid in pipes, a pressure less than the atmospheric pressure.

Acoustical Analysis

It is defined as the detailed study of all pertinent sound sources, sound transmission paths and sound receptors in the context of a particular acoustical problem.

Conduction

It is the transfer of heat from a point of higher temperature to a point of lower temperature

Piezoelectricity

Electricity produced by certain crystals such as quartz and Rochelle salts resulting from the application of mechanical stress or pressure is known as

Angle Valve

This valve is commonly installed on lavatories to control water supply where inlets and outlet openings are perpendicular to each other.

Rectifier

What device is used to convert alternating current into direct current? An example of the use of this device is that of an elevator where power input is in AC and the required current to run the motor is in DC.

Ampacity

It is the ability of wire or cable to carry current without overheating; it is rated in amperes.

Septic Tank

A watertight compartment into which the discharge of sanitary plumbing system or part thereof, designed art constructed to retain solids, digest organic matter through period of detention and to allow the liquid to discharge into the soil outside of the tank through a system of open-jointed sub-surface piping or seepage.

Direct Sound Field

What is the term used for a sound field in which the energy arrives at the receiver in a direct path from the source without any contribution from reflections?

Upfeed and Gravity Distribution System

What is the most common type of water distribution system which depends on the pressure from the water main.

Branch Interval

A vertical length of soil or waste stack at least eight feet in height (a storey height), within which the horizontal branches from one storey or floor of the building or structure are connected to the stack.

Relative Humidity

It is the ratio of the weight of water vapor actually contained in humid air to the maximum possible weight of water vapor that the air could contain at the same temperature.

Electromotive

Electrical pressure that causes the electrons to move through a conductor, it is analogous to pressure in water.

Reverberation Force

It is the persistence of sound in an enclosed space resulting from repeated reflection or scattering of sound.

column grids and dimensions shall be

indicated

The following are guidelines for preparing an electrical lighting layout EXCEPT__________.

Freon

What is the most common term used to refer to the liquid refrigerant used in air-conditioning systems?

Water PURIFICATION

A general term which refers to the process of removing contaminants from water. It involves several processes that is intended to render raw water to a potable and safe water for consumption.

Service Drop

In power supply system, this refers to the overhead service conductors running from the utility poles to the point of connection in a building

Common Vent

Which type of venting system is used to provide ventilation to two (2) fixture traps usually placed side-by-side or back-to-back?

Water Distributing System

A pipe which conveys potable water from the building supply pipe to the plumbing fixtures and other outlets.

Water closet may be located in an unlit or unventilated room

Which of the following statements is a violation or contradictory to the basic plumbing principles?

Ohm's Law

A law stating that relationship between current, voltage and resistance, it further states that the amount of current passing through a conductor is directly proportional to the voltage across the conductor and inversely proportional to the resistance of the conductor.

Luminous Efficiency

The ratio of luminous flux (lumen) emitted by a luminaire to the total flux emitted by the lamp in the luminaire.

Decibel

In acoustics, what is the unit of loudness level?

Trap

The following are examples of plumbing fixtures EXCEPT___________

Compressor

Also known as vapor pump, it draws refrigerant from the evaporator at low pressure and forces it to the condenser at high pressure before it passes through the expansion valve to reduce pressure and back to the evaporator; cycle is repeated.

Conduction

Refrigerating cycle involves the following basic operating principles EXCEPT ________________ in a closed circuit of tubes and cooling devices.

Electromagnetic Induction

This refers to a process of electromotive force (emf) generation through the movement of magnetic flux which cuts an electrical conductor

A conductor encased in a material that is not recognized by the code as electrical insulation

A covered conductor is described as ______________.

Unitary Room (AC Type)

A type of air-conditioning system where a self-contained unit houses all the necessary air-conditioning components.

Building Supply Pipe

In water supply system, it is the first section of water supply piping in a building after the water meter.

Power can be transmitted in longer distances in AC than DC using transformer

Which statement is true regarding alternating current?

Humidistat

What regulating device in an air conditioning unit is actuated by changes in humidity?

Relative Humidity

It is the ratio of the weight of water vapor actually contained in humid air to the maximum possible weight of water vapor that the air could contain at the same temperature.

Varies Inversely with

Inverse Square Law states that sound intensity _____________ the square of the distance from the source

Vent Stack

Which among the types of ventilation systems is done by installing a fitting/s as an interconnection of a soil/waste stack and a vent stack, it is usually connected at the base of a soil/waste stack and at the stack vent? It prevents pressure build-up and the occurrence of siphonage along the soil or waste stack.

Sound Attenuation

It is the product of surface area (sq. ft.) and sound absorption coefficient (SAC), it has the unit sabin.

Curved Surface

Creep is a phenomenon whereby sound travels in

Luminaire

it generally refers to a complete lighting unit consisting of one or more lamps together with components that are used to distribute light; also known as lighting fixtures.

CU

Which of the following is a factor or variable used in the Zonal Cavity Method of illumination calculations?

Ratio of luminous flux to power

The ratio of lumens produced by a lamp and the amount of power used generate lumens.

Luminosity

In lighting, it is the ratio of luminous flux to the corresponding radiant flux at a particular wavelength, it is expressed in lumens per watt

Annunciator

Electronic Transducer

Loud Speaker System

All of these

Which of the following is an example of an electronic amplification system?

Increasing the cross sectional area of the conductor increases its resistance

Which of the following statements describing electrical resistance in a conductor is FALSE?

Plumbing

The art and science 0f creating and maintaining sanitary conditions in building used by humans.

Plumbing System

The plumbing system of a building includes the water supply distributing pipes, the fixture and fixture traps, the soil, waste and vent pipes; the building drainand building sewer;lhe storm water drainage, with their devices, appurtenances and connections wjlhin the building and outside ihe building within the property line.

Water Supply System

A system in plumbing which provides and distributes water to the different parts 0f the building 0r structure, for purposes such as drinking, cleaning, washing, culinary use, etc.; it includes the water distributing pipes, control devices, equipment, and other appurtenances.

Drainage System

All the piping withjn a public or private premises which conveys sewage, rainwater or other liquid wastes to a point of disposal. A _____ does not include the mains of public sewer systems or a private 0r a public sewage treatment or disposal plant.

Sanitary Drainage and Vent piping System

The sanitary drajnage and vent piping system are installed by the plurnber to remove wastewarer and water-borne wastes from the plumbing fixtures and appliances, and to provide circulation of air within lhe drainage piping.

Sanitary Drainage pipes

Pipes installed to remove the wastewater and water-borne wastes from plumbing fixtures and convey these to the sanitary sewer and other point of disposal.

Ventilation System

A system of pipes, fittings and other devices installed for the purpose of providing circulation of air and creating balanced atmospheric condition within the system thereby preventing siphonage and backpressure.

Soil Pipe

A pipe that conveys the discharge 0l water closets or similar fixtures containing fecal malter, with or without the

discharge of other fixtures to the building drain or building sewer.

Waste Pipe

A pipe that conveys only liquid waste free of fecal matter.

Idirect Waste

A waste pipe thal does not connect directly wiih lhe drainage system, btrt that discharges into the drainage system through an air break or gap into a trap, fixture receptor or interceptor.

Sewage

Any liquid waste containing animal or vegetable matter in suspension or solution. lt may include Iiquids containing chemicals in solution.

Drain

A pipe which carries ground and surface water, storm water or waste water into the building drainage system.

Storm Drainage System

The storm drainage system is a system of pipes, fittings, devices and appurienances for removing stom waler- rainwater, surface run-off and underground seepage resulting from precipitalion.

Water Supply and Dislribution System

Hot and Cold Water Supply System

Sanitary Piping System

Soil Piping Syslem

Waste Piping System

Direct Waste Piping System

lndirect Waste Piping System

Ventilation System

House Drain

House Sewer

Drainage Cleanouts

Plumbing Traps

Storm Drainage Systems

Storm drainage system is a component system in drainage that is designed to collect, convey and discharge storm water or rainwater to a suitable or approved location or a system of disposal.

Sewage Disposal Systems

The screening, sedimentation, filtration, etc. of waste water and solids from a sewer, and the disposal of settled sludge in digestion tanks or on drying beds.

Plumbing Fixtures

______ are receptacles intended to receive water, liquid, or water carried wastes and discharge them into the drainage system

Air break

The physical separation between a waste pipe and an indirect waste receptor or device indirectly connected.

Air gap

The unobstructed vertical distance through the free atmosphere between the outlet of a faucet and the flood level rim of the fixture or receptacle.

Angle valve

A valve in which the inlet and outlet openings are at 900 angle to one another.

Backflow

The flow of water or wastewater in pipes in a reverse direction from that normally intended.

Back pressure

A pressure within the sanitary drainage system or vent piping system that is greater than atmospheric pressure (> 14. / psi).

Back Siphonage

The flowing by negative pressure of contaminated or polluted water from a plumbing fixture into a potable water system.

Backwater valve

A device installed in piping to prevent the reverse flow of storm or sewage into the drainage system or their branches

Ball valve

A valve in which the flow of liquid is controlled by a rotating drilled ball that fits tightly against a resilient (flexible) seat in the valve body

Battery of fixtures

Any group of two or more similar adjacent fixtures which discharge into a common horizontal waste or soil branch.

Bell or hub

The end portion of a pipe which for a short distance is enlarged to receive the end of another pipe which may be of the same diameter for the purpose of making a joint.

Bibb

A term that is synonymous with faucet, cock, plug, tap or spigot.

Bidet

A kind of fixture which is used for bathing the external genitals and posterior parts of the body.

Branch

Any part of the piping system other the main, riser or stack,

Branch interval

A veriical length of soil or waste stack at least eight feet in height (a storey height), within which ihe horizontal branches from one storey or floor of the building or structure are connected to the stack.

Building drain/House drain

That pan of the lowest horizontal piping of a plumbing syslem which receives the discharge from soil, waste and other drainage pipes inside a building and conveys it to the building sewer/house sewer.

Building/ House sewer

That part of the drainage system that extends from the end of the building drain and conveys its discharge to the public sewer, private sewer, individual sewage disposal system, or other appropriate point of disposal.

Building Supply Pipe

The first section of water supply piping in a building after the water meter.

Caulking/ Calking/Cogging

Plugging an opening with oakum, lead or other material that are pounded into the annular space. Also the material pounded into the annular space.

Cesspool

A non-wateriight lined excavation in the ground which receives the discharge of a sanitary drainage system or part thereof, designed to retain the organic matter and solids discharging there from, but permitting the liquid to seep through the sides and bottom of the cesspool.

Cleanout

A fitting with a removable plate or plug that is placed in plumbing drainage pipe lines to allow access to the pipes for the purpose of cleaning and maintenance

Conductor or Leader

Part of the roofing and/or area gutter system that takes water from a roof above-sprface area to a storm drain or other disposal area or system.

Cross connection

Any physical connection or arrangement of pipes between two otherwise separate building water supply pipes or system through which or by means of which water supply may flow from one system to the other, the direction 0f flow depends on the pressure difference between the two systems

Deadend

The extended portion of a pipe that is closed one end to which no connections are made on the extended portion, thus permitting stagnati0n of wastewater or air therein.

Developed length

The length along the center line of pipes and fittings

Diameter

The nominal commercial designation, normally the inside diameter of the pipe, unless otherwise specifically stated in a particular plumbing code.

Downspout

The vertical portion of a rainwater conductor

Drain

Any pipe which carries wastewater or waterborne wastes in a building drainage system.

Drainage fixture unit (dfu)

A common measure of the probable discharge into the drainage system by various types of plumbing figures 0n the basis of one dfu being equal to a discharge rate of 7.5 gals. per minute or one cubic foot 0f water per minute.

DWV

The abbreviation for drainage, waste and vent.

Faucet

A valve on a water pipe by means of which water can be drawn from or held within the pipe. the valve is placed on the end of the pipe.

Fixture

A receptacle attached to a plumbing system other than a trap in which water or wastes may be collected or obtained for ultimate into the plumbing system.

Flood level

The level in a fixture at which water begins to overflow the top or rim of the fixture.